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| Section | Weight | Objectives |
|---|---|---|
| Energy Project Implementation | 8-12% | - Project risk management - Project financing models - Performance contracting (ESPC) - Implementation strategies - Energy service companies (ESCOs) - Measurement and verification (M&V) |
| Environmental and Regulatory Compliance | 5-10% | - Sustainability reporting - Green building standards (LEED, ENERGY STAR) - Energy reporting requirements - Carbon footprint calculation - EPA regulations (Clean Air Act, Clean Water Act) |
| Energy Auditing | 15-20% | - Audit report writing - Audit procedures and methodologies - Baseline establishment - Metering and measurement equipment - Types of energy audits (preliminary, detailed, investment-grade) - Data collection and analysis |
| Energy Accounting and Economics | 10-15% | - Financial analysis techniques (ROI, NPV, IRR) - Energy cost accounting and allocation - Utility rate structures and tariffs - Energy price forecasting - Life cycle cost analysis (LCCA) |
| Electric Power Systems | 10-15% | - Motors and drives - Harmonics and power quality - Lighting systems and controls - Standby power systems - Power distribution systems - Power factor correction |
| Heating, Ventilating, and Air Conditioning (HVAC) | 12-18% | - Load calculations - Equipment efficiency ratings - Controls and optimization - HVAC system types and components - Heat transfer principles - Indoor air quality - Psychrometrics |
| Renewable Energy Technologies | 8-12% | - Geothermal systems - Solar photovoltaic systems - Solar thermal systems - Wind energy systems - Biomass and bioenergy - Energy storage technologies |
| Facilities Management | 8-12% | - Building automation systems (BAS) - Preventive maintenance programs - Commissioning and re-commissioning - Monitoring and targeting (M&T) - Operations and maintenance best practices |
| Building Envelope | 8-12% | - Windows and glazing systems - Thermal envelope analysis - Insulation types and R-values - Air leakage and infiltration - Daylighting and shading |
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NEW QUESTION # 111
Using a degree-day base of 18°C, calculate the number of cooling degree days (CDD) if the outside temperature is a uniform 25°C throughout the year (365 days/year).
Answer: A
NEW QUESTION # 112
A compressed air system has a total volume of 247,500 liters. During a 30-minute break in production (air compressor system turned off and no production demand for compressed air), the system pressure drops from
7 bar, gauge (700 kPa, gauge) to 5 bar, gauge (500 kPa, gauge). Calculate the leakage rate in the compressed air system.
Answer: D
NEW QUESTION # 113
When comparing two similar facilities, you see that the facility with newer, higher-efficiency equipment has a higher energy-use index [EUI] (kJ/m²-yr). What might be the cause?
Answer: D
Explanation:
1) CEM Principle: Equipment Efficiency # System Performance
The AEE CEM Body of Knowledge stresses that higher-efficiency equipment does not guarantee lower energy use unless systems are:
* Properly commissioned
* Correctly controlled
* Operated as designed
2) Evaluation of Options
* A. The facility with the higher EUI is in need of commissioning #
* Most common cause per CEM case studies: controls, sequences, and integration not optimized.
* B. The facility with the lower EUI is in need of commissioning #
* Lower EUI indicates better performance.
* C. The facility with the lower EUI requires a performance contract #
* No evidence supports this.
* D. The facility with the higher efficiency equipment should have a higher EUI #
* Contradicts energy efficiency principles.
* E. The facility with the higher EUI requires a SCADA system #
* Monitoring alone does not correct poor performance.
CEM Exam Insight
Commissioning ensures that high-efficiency equipment actually delivers expected energy performance.
NEW QUESTION # 114
A 7 bar (gauge pressure) compressed air system has 5 leaks that are 3 mm in diameter and 3 leaks that are 6 mm in diameter. The compressed-air system is pressurized 8,760 hours per year. Electricity cost is $0.10
/kWh. What is the annual cost of the leaks in the compressed air system?
Answer: E
NEW QUESTION # 115
An air conditioning unit cools make-up air from 25°C (dry bulb temperature) and 50% relative humidity down to 13°C. What type of heat has been removed from the air?
Answer: D
NEW QUESTION # 116
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